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EP1313237A3 - Detection of, and compensation for, waveform change due to chromatic dispersion - Google Patents

Detection of, and compensation for, waveform change due to chromatic dispersion Download PDF

Info

Publication number
EP1313237A3
EP1313237A3 EP03004246A EP03004246A EP1313237A3 EP 1313237 A3 EP1313237 A3 EP 1313237A3 EP 03004246 A EP03004246 A EP 03004246A EP 03004246 A EP03004246 A EP 03004246A EP 1313237 A3 EP1313237 A3 EP 1313237A3
Authority
EP
European Patent Office
Prior art keywords
chromatic dispersion
detection
compensation
change due
waveform
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03004246A
Other languages
German (de)
French (fr)
Other versions
EP1313237A2 (en
Inventor
Takeshi Fujitsu Limited Ihara
Yoichi Fujitsu Hokkaido Digital Techn Ltd Oikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of EP1313237A2 publication Critical patent/EP1313237A2/en
Publication of EP1313237A3 publication Critical patent/EP1313237A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
    • H04B10/25133—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion including a lumped electrical or optical dispersion compensator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/25—Distortion or dispersion compensation
    • H04B2210/252—Distortion or dispersion compensation after the transmission line, i.e. post-compensation

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

Waveform degradation due to chromatic dispersion of an optical fiber is detected and compensated for. A waveform detector detects a change in waveform, based on the ratio between the powers of a plurality of frequency components or on peak or duty detection, and the frequency bandwidth of an equalizing amplifier or the chromatic dispersion of an optical fiber is controlled based on the result of the detection.
EP03004246A 1997-10-20 1998-03-06 Detection of, and compensation for, waveform change due to chromatic dispersion Withdrawn EP1313237A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP28698097 1997-10-20
JP9286980A JPH11122173A (en) 1997-10-20 1997-10-20 Method and apparatus for detecting and compensating waveform changes due to chromatic dispersion
EP98104021A EP0912001B1 (en) 1997-10-20 1998-03-06 Detection of waveform change due to chromatic dispersion

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP98104021A Division EP0912001B1 (en) 1997-10-20 1998-03-06 Detection of waveform change due to chromatic dispersion

Publications (2)

Publication Number Publication Date
EP1313237A2 EP1313237A2 (en) 2003-05-21
EP1313237A3 true EP1313237A3 (en) 2004-11-03

Family

ID=17711467

Family Applications (7)

Application Number Title Priority Date Filing Date
EP03004250A Withdrawn EP1313239A3 (en) 1997-10-20 1998-03-06 Detection of, and compensation for, waveform change due to chromatic dispersion
EP03004247A Withdrawn EP1313238A3 (en) 1997-10-20 1998-03-06 Detection of, and compensation for, waveform change due to chromatic dispersion
EP03004246A Withdrawn EP1313237A3 (en) 1997-10-20 1998-03-06 Detection of, and compensation for, waveform change due to chromatic dispersion
EP03004245A Withdrawn EP1313236A3 (en) 1997-10-20 1998-03-06 Detection of, and compensation for, waveform change due to chromatic dispersion
EP03004248A Withdrawn EP1315322A3 (en) 1997-10-20 1998-03-06 Detection of, and compensation for, waveform change due to chromatic dispersion
EP98104021A Expired - Lifetime EP0912001B1 (en) 1997-10-20 1998-03-06 Detection of waveform change due to chromatic dispersion
EP03004249A Withdrawn EP1315323A3 (en) 1997-10-20 1998-03-06 Detection of, and compensation for, waveform change due to chromatic dispersion

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP03004250A Withdrawn EP1313239A3 (en) 1997-10-20 1998-03-06 Detection of, and compensation for, waveform change due to chromatic dispersion
EP03004247A Withdrawn EP1313238A3 (en) 1997-10-20 1998-03-06 Detection of, and compensation for, waveform change due to chromatic dispersion

Family Applications After (4)

Application Number Title Priority Date Filing Date
EP03004245A Withdrawn EP1313236A3 (en) 1997-10-20 1998-03-06 Detection of, and compensation for, waveform change due to chromatic dispersion
EP03004248A Withdrawn EP1315322A3 (en) 1997-10-20 1998-03-06 Detection of, and compensation for, waveform change due to chromatic dispersion
EP98104021A Expired - Lifetime EP0912001B1 (en) 1997-10-20 1998-03-06 Detection of waveform change due to chromatic dispersion
EP03004249A Withdrawn EP1315323A3 (en) 1997-10-20 1998-03-06 Detection of, and compensation for, waveform change due to chromatic dispersion

Country Status (5)

Country Link
US (1) US5999289A (en)
EP (7) EP1313239A3 (en)
JP (1) JPH11122173A (en)
CN (1) CN1111983C (en)
DE (1) DE69820005T2 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000031900A (en) * 1998-07-08 2000-01-28 Fujitsu Ltd Method for optical fiber communication and terminal equipment and system used for implementing the method
DE19904252A1 (en) * 1999-02-03 2000-08-10 Alcatel Sa Distortion detection method and receiver for distorted optical signals
JP2001211122A (en) * 2000-01-26 2001-08-03 Nec Corp Device and method for monitoring dispersion compensation, device and method for controlling dispersion, optical receiver, and optical transmission system
AU2001262909A1 (en) 2000-02-18 2001-08-27 Corning Incorporated Adaptive feedback control method for polarization mode dispersion or chromatic dispersion compensation
US6356684B1 (en) 2000-04-14 2002-03-12 General Dynamics Advanced Technology Systems, Inc. Adjustable optical fiber grating dispersion compensators
JP4592887B2 (en) * 2000-08-07 2010-12-08 富士通株式会社 Method and system for compensating chromatic dispersion
EP1338105A2 (en) * 2000-12-01 2003-08-27 Siemens Aktiengesellschaft Device and method for detecting distortions during optical information transmission
JP2002243589A (en) * 2001-02-22 2002-08-28 Ando Electric Co Ltd Measuring device and method for wavelength dispersion distribution
JP3798640B2 (en) * 2001-03-02 2006-07-19 富士通株式会社 Receiving device, received signal waveform deterioration compensation method, waveform deterioration detecting device and method, and waveform measuring device and method
US6829549B2 (en) * 2001-12-17 2004-12-07 Nortel Networks Limited Implementation of a post detection chromatic dispersion compensation transfer function
US6775631B2 (en) 2001-12-17 2004-08-10 Nortel Networks Limited Post detection chromatic dispersion compensation
US7058311B1 (en) * 2002-03-15 2006-06-06 Xtera Communications, Inc. System and method for dispersion compensation in an optical communication system
US7197245B1 (en) 2002-03-15 2007-03-27 Xtera Communications, Inc. System and method for managing system margin
JP2004032411A (en) * 2002-06-26 2004-01-29 Sumitomo Electric Ind Ltd Optical receiver and optical communication system
CA2491739C (en) 2002-07-16 2011-09-20 Yong Qin Chen Compensating for chromatic dispersion in optical fibers
JP3880906B2 (en) * 2002-08-22 2007-02-14 富士通株式会社 Receiver having waveform deterioration compensation function
JP4082992B2 (en) * 2002-11-21 2008-04-30 富士通株式会社 Optical dispersion monitoring apparatus and method, and optical transmission system using the same
CN100370714C (en) * 2003-01-06 2008-02-20 华为技术有限公司 A method for realizing ultra-long-distance transmission
JP3740538B2 (en) * 2003-03-14 2006-02-01 独立行政法人情報通信研究機構 Optical receiver and dispersion compensation control method
JP4138557B2 (en) * 2003-03-31 2008-08-27 富士通株式会社 Chromatic dispersion compensation control system
JP4468656B2 (en) * 2003-05-27 2010-05-26 株式会社日立製作所 Signal waveform deterioration compensator
US7603045B2 (en) * 2003-08-28 2009-10-13 Fujitsu Limited Method and system for automatic feedback control for fine tuning a delay interferometer
CN100461653C (en) * 2006-05-13 2009-02-11 华为技术有限公司 A dispersion detection method and device
JP4729454B2 (en) * 2006-08-04 2011-07-20 富士通株式会社 Optical receiving circuit and identification level control method thereof
JP4935250B2 (en) * 2006-08-31 2012-05-23 富士通株式会社 Dispersion compensation apparatus and dispersion compensation control method
JP4900481B2 (en) * 2007-07-02 2012-03-21 富士通株式会社 Wavelength division multiplexing apparatus and optical signal input interruption detection method
CN101965698B (en) * 2009-03-27 2014-11-05 富士通株式会社 Apparatus and method for dispersion equalization and digital coherent optical receiver
JP5291767B2 (en) * 2011-07-19 2013-09-18 横河電機株式会社 Fiber measuring device
WO2016008078A1 (en) * 2014-07-14 2016-01-21 华为技术有限公司 Control circuit for equalizer, equalizer and optical receiver
JP6661263B2 (en) * 2014-09-03 2020-03-11 富士通株式会社 Optical transmission device, nonlinear distortion compensation method, and nonlinear distortion pre-equalization method
CN105703826B (en) * 2016-04-21 2018-01-05 北京邮电大学 A kind of method that Fourier Transform of Fractional Order with linear FM signal measures dispersion
US10056987B1 (en) * 2017-09-22 2018-08-21 Rohde & Schwarz Gmbh & Co. Kg System for measuring radio frequency power

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5406368A (en) * 1993-07-06 1995-04-11 Kokusai Denshin Denwa Kabushiki Kaisha Method and apparatus for chromatic dispersion measurements
EP0684709A1 (en) * 1994-05-25 1995-11-29 AT&T Corp. Optical communications system with adjustable dispersion compensation
EP0700178A2 (en) * 1994-08-02 1996-03-06 Fujitsu Limited Optical transmission system with optimisation of transmission conditions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3522044B2 (en) * 1996-04-19 2004-04-26 富士通株式会社 Optical transmission system
JP3095694B2 (en) * 1996-09-13 2000-10-10 安藤電気株式会社 Optical fiber strain measurement device
JPH10111212A (en) * 1996-10-09 1998-04-28 Ando Electric Co Ltd Light pulse test equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5406368A (en) * 1993-07-06 1995-04-11 Kokusai Denshin Denwa Kabushiki Kaisha Method and apparatus for chromatic dispersion measurements
EP0684709A1 (en) * 1994-05-25 1995-11-29 AT&T Corp. Optical communications system with adjustable dispersion compensation
EP0700178A2 (en) * 1994-08-02 1996-03-06 Fujitsu Limited Optical transmission system with optimisation of transmission conditions

Also Published As

Publication number Publication date
EP1315322A2 (en) 2003-05-28
EP1313237A2 (en) 2003-05-21
EP0912001A2 (en) 1999-04-28
EP1315323A3 (en) 2004-11-03
EP1313239A2 (en) 2003-05-21
CN1215265A (en) 1999-04-28
EP0912001A3 (en) 2002-06-26
DE69820005T2 (en) 2004-09-02
EP1313236A2 (en) 2003-05-21
EP1313238A2 (en) 2003-05-21
US5999289A (en) 1999-12-07
EP1313236A3 (en) 2004-11-03
JPH11122173A (en) 1999-04-30
EP0912001B1 (en) 2003-11-26
EP1313238A3 (en) 2004-11-03
EP1315322A3 (en) 2004-11-03
EP1315323A2 (en) 2003-05-28
EP1313239A3 (en) 2004-11-03
DE69820005D1 (en) 2004-01-08
CN1111983C (en) 2003-06-18

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